Rotatable Connector Position Assurance for Sealing Integrity
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Solution Overview
Problem
Existing connector assemblies in the automotive sector face issues with sealing due to actuation of position assurance devices affecting sealing elements, and they are complex and space-consuming.
Innovation Solution
A connector assembly with a position assurance device that rotates about the connection axis, incorporating a locking element and a position assurance mechanism that blocks the locking element in the locking position, ensuring secure interlock and compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a position assurance device is actuated to secure the interlock between connector housings, then the connection reliability is improved, but the sealing element seating is adversely changed leading to sealing problems
Solution Approach 1:
The position assurance device transitions from a static axial displacement mechanism to a dynamic rotational mechanism. The device rotates about the connection axis between a disconnection position (allowing locking element movement) and a blocking position (fixing the locking element), thereby securing the interlock without adversely affecting sealing element seating through rotational rather than axial motion.
2Stability of the object's composition
If traditional position assurance devices are used to prevent unintentional release, then connection stability is improved, but the device complexity and space requirements increase
Solution Approach 1:
The position assurance device integrates multiple functions into a single rotational mechanism: it blocks the locking element in the locking position, prevents unintentional release, and maintains sealing integrity. This multi-functional design reduces the number of separate components needed while achieving connection stability through rotation about the connection axis rather than through complex axial displacement mechanisms.
3Reliability
If axial displacement of position assurance is used to block interlock, then the locking position is secured, but the sealing element seating is adversely affected
Solution Approach 1:
The invention changes the motion mode from axial displacement to rotational movement about the connection axis. The position assurance device rotates between disconnection and blocking positions, securing the locking element in the locking position through rotation rather than axial movement, thereby maintaining sealing element seating precision while achieving reliable locking position security.
Data Source
AI summary
A connection assembly of a connector comprises a connection housing, a locking element and a position assurance device. The connection housing is interconnectable with a counter connection housing along a connection axis. The locking element is movable between a locking position fixing the counter connection housing to the connection housing, and a release position releasing the counter connection housing from the connection housing. The position assurance device movable between a disconnection position, in which the position assurance device permits movement of the locking element from the locking position to the release position, and a blocking position, in which the position assurance device fixes the locking element in the locking position. The position assurance device is rotated about the connection axis on the connection housing when moving between the disconnection position and the blocking position.